* common.mk (help): describes more targets.

  based on a patch by Michael Klishin. [ruby-core:20523].


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@20725 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 19 insertions, 8 deletions

diff --git a/common.mk b/common.mk
index a4c2bf1eb..dfe1c632f 100644
--- a/common.mk
+++ b/common.mk
@@ -738,11 +738,22 @@ help: PHONY
 	@echo "                Makefile of Ruby"
 	@echo ""
 	@echo "targets:"
-	@echo "  all:           compile ruby and extensions"
-	@echo "  check:         equals make test test-all"
-	@echo "  test:          ruby core tests"
-	@echo "  test-all:      all ruby tests"
-	@echo "  install:       install all ruby distributions"
-	@echo "  install-nodoc: install without rdoc"
-	@echo "  clean:         clean built objects"
-	@echo "  golf:          for golfers"
+	@echo "  all (default):   builds ruby"
+	@echo "  miniruby:        builds only miniruby"
+	@echo "  run:             runs test.rb by miniruby"
+	@echo "  runruby:         runs test.rb by ruby you just built"
+	@echo "  gdb:             runs test.rb by miniruby under gdb"
+	@echo "  gdb-ruby:        runs test.rb by ruby under gdb"
+	@echo "  all:             compile ruby and extensions"
+	@echo "  check:           equals make test test-all"
+	@echo "  test:            ruby core tests"
+	@echo "  test-all:        all ruby tests"
+	@echo "  test-rubyspec    run RubySpec test suite"
+	@echo "  update-rubyspec  update local copy of RubySpec"
+	@echo "  install:         install all ruby distributions"
+	@echo "  install-nodoc:   install without rdoc"
+	@echo "  clean:           clean built objects"
+	@echo "  golf:            for golfers"
+	@echo
+	@echo "see DeveloperHowto for more detail: "
+	@echo "  http://redmine.ruby-lang.org/wiki/ruby/DeveloperHowto"